Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	$ 729.3	$ 179.2
Total liabilities at fair value	80.8	31.9
Other [Member] | Investments Held in a Rabbi Trust [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	4.1	5.2
Inventories and Other Current Assets , Net [Member] | Investments Held in a Rabbi Trust [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0.9	1.1
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		88.9
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	0.2
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency [Member] | Trade and Notes Receivable , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0.7
Executive Retirement Plan [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	4.1	5.2
Executive Retirement Plan [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	0.9	1.1
Derivatives Designated as Cash Flow Hedges [Member] | Interest Rate [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	52.3	25.6
Derivatives Designated as Cash Flow Hedges [Member] | Foreign Currency [Member] | Trade and Notes Receivable , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	4.9	6.0
Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	23.3
Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	718.7	75.9
Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Inventories and Other Current Assets , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		2.1
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	5.0	6.3
Level 1 [Member] | Other [Member] | Investments Held in a Rabbi Trust [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	4.1	5.2
Level 1 [Member] | Inventories and Other Current Assets , Net [Member] | Investments Held in a Rabbi Trust [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0.9	1.1
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	724.3	172.9
Total liabilities at fair value	80.8	31.9
Level 2 [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		88.9
Level 2 [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	0.2
Level 2 [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency [Member] | Trade and Notes Receivable , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	0.7
Level 2 [Member] | Executive Retirement Plan [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	4.1	5.2
Level 2 [Member] | Executive Retirement Plan [Member] | Other Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	0.9	1.1
Level 2 [Member] | Derivatives Designated as Cash Flow Hedges [Member] | Interest Rate [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	52.3	25.6
Level 2 [Member] | Derivatives Designated as Cash Flow Hedges [Member] | Foreign Currency [Member] | Trade and Notes Receivable , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	4.9	6.0
Level 2 [Member] | Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	23.3
Level 2 [Member] | Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	$ 718.7	75.9
Level 2 [Member] | Derivatives Designated as Net Investment Hedges [Member] | Foreign Currency [Member] | Inventories and Other Current Assets , Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		$ 2.1